The Musical Keyboard Can Fill Your Leisure Times

A musical keyboard is the set of adjacent depressible levers or keys on musical instrument. Musical keyboard normally contain keys of twelve notes of the Western musical scale with a combination of larger, longer, smaller and shorter keys. The keys repeat at the interval of an octave.

Depressing a key on the keyboard causes the instrument to produce sounds, either by mechanically striking a string or tine (piano, electric piano, clavichord), plucking a string (harpsichord), causing air to flow through a pipe (organ), striking a bell (carillon), or, on electric and electronic keyboards, completing a circuit (Hammond organ, digital piano, synthesizer).

Since the most commonly encountered keyboard instrument is the piano, the keyboard layout is often referred to as the "piano keyboard".

Below are the example of keyboards that you can choose to be owned..

                       


                       


           

Xiaomi Mi Mix 2 Specification Released in September 2017

Xiaomi Mi Mix 2  smartphones was announced in September 2017 and was released in September 2017. The model of smartphones supported the 2G, 3G, and 4G network with a weight at 185g.

The smartphones use Android 7.1 (Nougat) as its platform. It is equipped by Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo) CPU. The internal memory of the smartphones can be found at 128GB with 8GB of RAM and 64/128/256 GB with 6GB of RAM.

The primary camera is 12MP and the secondary camera is 5MP. Xiaomi Mi Mix 2 smartphones supported WLAN, Bluetooth, GPS, NFC and USB.

Xiaomi Mi Mix 2 used Non-removable Li-Ion 3400 mAh battery battery as its battery. The colours of smartphones can be found in black and white colours with the price is about 520 EUR.

Ocay, let`s go to the details of Xiaomi Mi Mix 2 specification :

Network	Technology	GSM / CDMA / HSPA / EVDO / LTE
	2G bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
	3G bands	HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 CDMA2000 1xEV-DO
	4G bands	LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 27(800), 28(700), 29(700), 30(2300), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
	Speed	HSPA, LTE
	GPRS	Yes
	EDGE	Yes
Launch	Announced	September, 2017
	Status	Released, September 2017
Body	Dimensions	151.8 x 75.5 x 7.7 mm (5.98 x 2.97 x 0.30 in)
	Weight	185 g (6.53 oz)
	Build	Front glass, aluminum frame, ceramic back 128/8 GB model - all ceramic
	SIM	Dual SIM (Nano-SIM, dual stand-by)
Display	Type	IPS LCD capacitive touchscreen, 16M colors
	Size	5.99 inches, 92.6 cm2 (~80.8% screen-to-body ratio)
	Resolution	1080 x 2160 pixels, 18:9 ratio (~403 ppi density)
	Multitouch	Yes
	Protection	Corning Gorilla Glass 4
		- MIUI 9
Platform	OS	Android 7.1 (Nougat)
	Chipset	Qualcomm MSM8998 Snapdragon 835
	CPU	Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)
	GPU	Adreno 540
Memory	Card Slot	No
	Internal	128 GB, 8 GB RAM or 64/128/256 GB, 6 GB RAM
Camera	Primary	12 MP, f/2.0, phase detection autofocus, OIS (4-axis), dual-LED (dual tone) flash
	Features	1/2.9" sensor size, 1.25 µm pixel size, geo-tagging, touch focus, face detection, HDR, panorama
	Video	2160p@30fps, 1080p@30fps, 720p@120fps
	Secondary	5 MP, f/2.0, 1080p
Sound	Alert Types	Vibration; MP3, WAV ringtones
	Loudspeaker	Yes
	3.5mm jack	No
		- Active noise cancellation with dedicated mic - 3.5 mm to USB-C headphone adapter incl.
COMMS	WLAN	Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
	Bluetooth	5.0, A2DP, LE
	GPS	Yes, with A-GPS, GLONASS, BDS
	NFC	Yes
	Radio	No
	USB	Type-C 1.0 reversible connector
Features	Sensors	Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer
	Messaging	SMS(threaded view), MMS, Email, Push Mail, IM
	Browser	HTML5
	Java	No
		Fast battery charging 9V/2A (Quick Charge 3.0) XviD/MP4/H.265 player MP3/WAV/eAAC+/Flac player Photo/video editor Document viewer
Battery		Non-removable Li-Ion 3400 mAh battery
MISC	Colours	Black, White
	Price	About 520 EUR
Test	Performance	Basemark OS II: 4365 / Basemark OS II 2.0: 3578 Basemark X: 38349
	Display	Contrast ratio: 1287 (nominal), 3.19 (sunlight)
	Camera	Photo / Video
	Loudspeaker	Voice 67dB / Noise 71dB / Ring 82dB
	Battery life	Endurance rating 65h

Ok, that`s all for the Xiaomi Mi Mix 2.. :-)

Nokia 8 Specification Released in October 2017

Nokia 8 smartphones was announced in September 2017 and was released in October 2017. The model of smartphones supported the 2G, 3G, and 4G network with a weight at 160g.

The smartphones use Android 7.1.1 (Nougat) and was planned to upgrade to Android 8.0 (Oreo) as its platform. It is equipped by Octa-core (4x2.5 GHz Kryo & 4x1.8 GHz Kryo) CPU. The internal memory of the smartphones can be found at 64GB and 128GB as its RAM.

The primary camera is 13MP and the second camera is also 13MP. Nokia 8 smartphones supported WLAN, Bluetooth, GPS, NFC and USB.

Nokia 8 used Non-removable Li-Ion 3090mAh battery battery as its battery. The colours of smartphones can be found in Tempered Blue, Polished Blue, Steel, and Polished Copper colours with the price is about 600 EUR.

Ocay, let`s go to the details of Nokia 8 specification :

Network	Technology	GSM / HSPA / LTE
	2G bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
	3G bands	HSDPA 850 / 900 / 1900 / 2100
	4G bands	LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 39(1900), 40(2300), 41(2500)
	Speed	HSPA 42.2/5.76 Mbps, LTE-A (3CA) Cat9 450/50 Mbps
	GPRS	Yes
	EDGE	Yes
Launch	Announced	September, 2017
	Status	Released, October 2017
Body	Dimensions	151.5 x 73.7 x 7.9 mm (5.96 x 2.90 x 0.31 in)
	Weight	160 g (5.64 oz)
	SIM	Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)
		- IP54 certified - dust and splash resistant
Display	Type	IPS LCD capacitive touchscreen, 16M colors
	Size	5.3 inches, 77.4 cm2 (~69.4% screen-to-body ratio)
	Resolution	1440 x 2560 pixels, 16:9 ratio (~554 ppi density)
	Multitouch	Yes
	Protection	Corning Gorilla Glass 5
		- Always-on display
Platform	OS	Android 7.1.1 (Nougat), planned upgrade to Android 8.0 (Oreo)
	Chipset	Qualcomm MSM8998 Snapdragon 835
	CPU	Octa-core (4x2.5 GHz Kryo & 4x1.8 GHz Kryo)
	GPU	Adreno 540
Memory	Card Slot	microSD, up to 256 GB (uses SIM 2 slot)
	Internal	128 GB, 6 GB RAM or 64 GB, 4 GB RAM
Camera	Primary	Dual 13 MP, f/2.0, laser & phase detection autofocus, Carl Zeiss optics, OIS, dual-LED (dual tone) flash
	Features	1.12µm pixel size, geo-tagging, touch focus, face detection, HDR, panorama
	Video	2160p@30fps, 1080p@30fps
	Secondary	13 MP, f/2.0, phase detection autofocus, 1.12 µm pixel size, 2160p
Sound	Alert Types	Vibration; MP3, WAV ringtones
	Loudspeaker	Yes
	3.5mm jack	Yes
		- 24-bit/192kHz audio - Nokia OZO audio - Active noise cancellation with dedicated mic
COMMS	WLAN	Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
	Bluetooth	5.0, A2DP, LE
	GPS	Yes, with A-GPS, GLONASS, BDS
	NFC	Yes
	Radio	No
	USB	3.1, Type-C 1.0 reversible connector
Features	Sensors	Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer
	Messaging	SMS(threaded view), MMS, Email, Push Mail, IM
	Browser	HTML5
	Java	No
		·        Fast battery charging (Quick Charge 3.0) ·        MP4/H.264 player ·        MP3/WAV/eAAC+/FLAC player ·        ANT+ support ·        Photo/video editor ·        Document viewer
Battery		Non-removable Li-Ion 3090mAh battery
MISC	Colours	Tempered Blue, Polished Blue, Steel, Polished Copper
	Price	About 600 EUR
Test	Performance	Basemark OS II:4215 / Basemark OS II 2.0:3503 Basemark X:37593
	Display	Contrast ratio: 1840:1 (nominal), 4.239 (sunlight)
	Camera	Photo / Video
	Loudspeaker	Voice 88dB / Noise 77dB / Ring 81dB
	Audio quality	Noise -94.2dB / Crosstalk -88.5dB
	Battery life	Endurance rating 78h

Ok, that`s all for the Nokia 8..